CN108168033A - Fan control method and device, control circuit and air conditioner - Google Patents

Fan control method and device, control circuit and air conditioner Download PDF

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Publication number
CN108168033A
CN108168033A CN201711160724.2A CN201711160724A CN108168033A CN 108168033 A CN108168033 A CN 108168033A CN 201711160724 A CN201711160724 A CN 201711160724A CN 108168033 A CN108168033 A CN 108168033A
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China
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input voltage
voltage
control
control circuit
control signal
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CN201711160724.2A
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Inventor
朱亚旗
程海松
马劲鹏
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201711160724.2A priority Critical patent/CN108168033A/en
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Abstract

The invention discloses a fan control method, a fan control device, a fan control circuit and an air conditioner. Wherein, this control circuit includes: the controller is used for detecting whether the input voltage meets a preset control condition or not and outputting a corresponding control signal according to a detection result; the fan control circuit is connected with the controller and used for receiving the control signal and outputting the regulated input voltage; the voltage regulator is connected with the fan control circuit and used for regulating voltage according to the regulated input voltage and outputting the regulated input voltage; and the motor is connected with the voltage regulator and used for driving the motor according to the input voltage after voltage regulation. The invention solves the technical problem of high energy consumption of the variable frequency air conditioner.

Description

Blower control method, device, control circuit and air-conditioning
Technical field
The present invention relates to air-conditioning technical application field, in particular to a kind of blower control method, device, control electricity Road and air-conditioning.
Background technology
Modern society, people are higher and higher to quality of life requirement with the development of economy, and air-conditioning has been people's life In indispensable household electrical appliance.But since China's power network fluctuation range is larger, frequency converting air-conditioner compressor during for low-voltage Partial circuit is boosted using PFC (Power Factor Correction, abbreviation PFC) circuit, still For mainly undertaking the single-phase asynchronous wind turbine of radiator portion not using booster circuit, power section device hair during subnormal voltage operation Hot serious, but since voltage is compared with slow-speed of revolution decline, heat dissipation effect is deteriorated cooling fan, causes the temperature of power device is excessively high to cause Failure reduces running frequency, leads to poor refrigerating efficiency, user's comfort is poor;When air conditioner load is smaller, rotation speed of fan is still It is higher, cause unnecessary energy expenditure;Under high input voltage, wind turbine is also very big due to the noise that high rotating speed generates.
For above-mentioned due to technological deficiency existing for the control of side slope air-conditioning in the prior art, cause air conditioning energy consumption high Problem, currently no effective solution has been proposed.
Invention content
An embodiment of the present invention provides a kind of blower control method, device, control circuit and air-conditioning, at least to solve frequency conversion The technical issues of air conditioning energy consumption is high.
One side according to embodiments of the present invention provides a kind of control circuit, including:Controller, air-blower control electricity Road, pressure regulator, motor, wherein, controller, for detecting whether input voltage meets default control condition, according to testing result Export corresponding control signal;Draught fan control circuit is connect with controller, and signal is controlled for receiving, defeated after output adjusting Enter voltage;Pressure regulator is connect with draught fan control circuit, for carrying out pressure regulation, and export pressure regulation according to the input voltage after adjusting Input voltage afterwards;Motor is connect with pressure regulator, for according to the input voltage driving motor after pressure regulation.
Optionally, controller includes:Main control chip, wherein, main control chip is pre- for including first in default control condition If voltage and the second predeterminated voltage, and in the case that the first predeterminated voltage is less than the second predeterminated voltage, when detecting input voltage During more than or equal to the first predeterminated voltage, output promotes the control signal of input voltage;When detecting that input voltage is less than or waits When the second predeterminated voltage, output reduces the control signal of input voltage.
Optionally, draught fan control circuit includes:Switching group and corresponding winding, wherein, switching group, for according to control letter Number control it is at least one switch carry out folding;Winding is connected with corresponding at least one switch, for according at least one switch Folding adjustment winding resistance value so that input voltage is adjusted.
Optionally, control circuit further includes:Outdoor machine of air-conditioner control system, wherein, outdoor machine of air-conditioner control system connects with motor It connects, for the environment temperature of driving power control outdoor machine of air-conditioner control system exported according to motor.
Other side according to embodiments of the present invention provides a kind of blower control method, including:Detect input voltage Whether meet default control condition, and corresponding control signal is exported according to testing result;According to control signal to input voltage Carry out transformation;According to the input voltage driving motor after transformation.
Optionally, whether detection input voltage meets default control condition, and exports corresponding control according to testing result Signal includes:Include the first predeterminated voltage and the second predeterminated voltage, and the first predeterminated voltage is less than second in default control condition In the case of predeterminated voltage, when detecting that input voltage is greater than or equal to the first predeterminated voltage, and air conditioner load be more than it is default defeated When going out power, output promotes the control signal of input voltage;When detect input voltage be less than or equal to the second predeterminated voltage, and When air conditioner load is less than default output power, output reduces the control signal of input voltage.
Optionally, transformation is carried out to input voltage according to control signal to include:It is to promote input voltage in control signal In the case of signal, first switch is disconnected, second switch is closed, boosts to input voltage;It is defeated to reduce in control signal In the case of the signal for entering voltage, first switch is closed, second switch is disconnected, input voltage is depressured.
Further, optionally, include according to the input voltage driving motor after transformation:After input voltage is boosting In the case of voltage, rotation speed of fan is promoted by driving motor;In the case where input voltage is the voltage after decompression, pass through drive Dynamic motor reduces rotation speed of fan.
Optionally, whether detection input voltage meets default control condition, and exports corresponding control according to testing result Signal includes:Include the first predeterminated voltage and the second predeterminated voltage, and the first predeterminated voltage is less than second in default control condition In the case of predeterminated voltage, when detecting that input voltage is located at the section of the first predeterminated voltage and the second predeterminated voltage, control Running state of air conditioner is constant.
Another aspect according to embodiments of the present invention provides a kind of fan controller, including:Detection module is used Whether meet default control condition, and corresponding control signal is exported according to testing result in detection input voltage;Voltage changing module, For carrying out transformation to input voltage according to control signal;Control module, for according to the input voltage driving motor after transformation.
Another aspect according to embodiments of the present invention provides a kind of air-conditioning, including:Control circuit, wherein, control electricity Road includes above-mentioned control circuit.
In embodiments of the present invention, by controller, draught fan control circuit, pressure regulator, motor, wherein, controller is used for Whether detection input voltage meets default control condition, and corresponding control signal is exported according to testing result;Draught fan control circuit, It is connect with controller, controls signal for receiving, the input voltage after output adjusting;Pressure regulator is connect with draught fan control circuit, For carrying out pressure regulation, and export the input voltage after pressure regulation according to the input voltage after adjusting;Motor is connect with pressure regulator, is used Input voltage driving motor after foundation pressure regulation has achieved the purpose that extension each component service life of air-conditioning, it is achieved thereby that The technique effect of air conditioning energy consumption is reduced, and then solves the technical issues of convertible frequency air-conditioner high energy consumption.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and forms the part of the application, this hair Bright illustrative embodiments and their description do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings:
Fig. 1 is a kind of structure diagram of according to embodiments of the present invention one control circuit;
Fig. 2 is the structure diagram of according to embodiments of the present invention one another control circuit;
Fig. 3 is a kind of flow diagram of according to embodiments of the present invention two blower control method;
Fig. 4 is the flow diagram of according to embodiments of the present invention two another blower control method;
Fig. 5 is a kind of structure diagram of according to embodiments of the present invention three fan controller.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the present invention program, below in conjunction in the embodiment of the present invention The technical solution in the embodiment of the present invention is clearly and completely described in attached drawing, it is clear that described embodiment is only The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people Member's all other embodiments obtained without making creative work should all belong to the model that the present invention protects It encloses.
It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, " Two " etc. be the object for distinguishing similar, and specific sequence or precedence are described without being used for.It should be appreciated that it uses in this way Data can be interchanged in the appropriate case, so as to the embodiment of the present invention described herein can in addition to illustrating herein or Sequence other than those of description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that cover Cover it is non-exclusive include, be not necessarily limited to for example, containing the process of series of steps or unit, method, system, product or equipment Those steps or unit clearly listed, but may include not listing clearly or for these processes, method, product Or the intrinsic other steps of equipment or unit.
Embodiment one
According to embodiments of the present invention, a kind of control circuit embodiment is provided, it should be noted that in the flow chart of attached drawing The step of showing can perform in the computer system of such as a group of computer-executable instructions, although also, in flow chart In show logical order, but in some cases, can shown or described step be performed with the sequence being different from herein Suddenly.
Fig. 1 is a kind of structure diagram of according to embodiments of the present invention one control circuit, as shown in Figure 1, the control is electric Road includes:
Controller 12, draught fan control circuit 14, pressure regulator 16, motor 18, wherein,
Controller 12 for detecting whether input voltage meets default control condition, exports corresponding according to testing result Control signal;Draught fan control circuit 14 is connect with controller 12, controls signal for receiving, the input voltage after output adjusting; Pressure regulator 16 is connect with draught fan control circuit 14, for carrying out pressure regulation, and after exporting pressure regulation according to the input voltage after adjusting Input voltage;Motor 18 is connect with pressure regulator 16, for according to the input voltage driving motor 18 after pressure regulation.
Specifically, Fig. 2 is the structure diagram of according to embodiments of the present invention one another control circuit, as shown in Fig. 2, Controller 12 can be main control chip in the control circuit that the application provides, and motor 18 can be single-phase asynchronous motor (generation below Claim wind turbine), wherein, the control circuit that the application provides is detected the voltage of main power source by using outer machine main control chip; Pass through the input voltage of the control and regulation wind turbine to the switch in draught fan control circuit 14.Voltage, wind are improved by pressure regulator 16 The rotating speed increase of machine, enhances heat dissipation effect of the wind turbine to controller and outer machine condenser.It can lead to when air conditioner load is smaller Crossing transformer reduces voltage, reduces rotation speed of fan, reduces Overall Power Consumption.
PFC (Power is used for low-voltage space-time pressure regulation compressor portion parallel circuit in the prior art Factor Correction, abbreviation PFC) circuit boosts, but for mainly undertaking the single-phase asynchronous wind turbine of radiator portion Not using booster circuit, power section device heating is serious during subnormal voltage operation, and cooling fan is but since voltage is compared with the slow-speed of revolution Decline, heat dissipation effect is deteriorated, and causes the temperature of power device is excessively high to cause to fail, when air conditioner load is smaller, due to without wind Machine higher rotation speed operates, and causes unnecessary energy expenditure.
And the control circuit that the application provides can realize air-conditioning in subnormal voltage operation, by single-phase asynchronous motor (wind turbine) voltage is adjusted, and improves rotation speed of fan, enhances the heat dissipation effect of air-conditioning, reduces the running temperature of power device, protects Reliability of the air-conditioning in subnormal voltage operation is demonstrate,proved, can be depressured when air conditioner load is smaller by transformer, reduces wind turbine Rotating speed reduces wind turbine power consumption, reaches energy saving purpose.
It should be noted that the application provide above-mentioned example be only subject to realize the application provide control circuit, tool Body does not limit.
In embodiments of the present invention, by controller, draught fan control circuit, pressure regulator, motor, wherein, controller is used for Whether detection input voltage meets default control condition, and corresponding control signal is exported according to testing result;Draught fan control circuit, It is connect with controller, controls signal for receiving, the input voltage after output adjusting;Pressure regulator is connect with draught fan control circuit, For carrying out pressure regulation, and export the input voltage after pressure regulation according to the input voltage after adjusting;Motor is connect with pressure regulator, is used Input voltage driving motor after foundation pressure regulation has achieved the purpose that extension each component service life of air-conditioning, it is achieved thereby that The technique effect of air conditioning energy consumption is reduced, and then solves the technical issues of convertible frequency air-conditioner high energy consumption.
Optionally, controller 12 includes:Main control chip, wherein, main control chip, for including first in default control condition Predeterminated voltage and the second predeterminated voltage, and the first predeterminated voltage inputs electricity less than in the case of the second predeterminated voltage when detecting When pressure is greater than or equal to the first predeterminated voltage, output promotes the control signal of input voltage;When detect input voltage be less than or During equal to the second predeterminated voltage, output reduces the control signal of input voltage.
Optionally, draught fan control circuit 14 includes:Switching group and corresponding winding, wherein, switching group, for according to control At least one switch of signal control carries out folding;Winding is connected with corresponding at least one switch, for being opened according at least one The resistance value of the folding adjustment winding of pass, so that input voltage is adjusted.
Wherein, the switch in the switching group that the application provides can include:Relay, wherein, relay is solid including other Other controllable devices such as state relay, silicon-controlled, the application are only illustrated by preferable example of relay, what the application provided Above-mentioned example be only subject to realize the application provide control circuit, do not limit specifically.
In addition, as shown in Fig. 2, linear transformer winding is not limited to 2 tunnels in Fig. 2, it can be according to the need of subdivision voltage range It is set as multichannel, that is, according to subdivision voltage range, increasing multigroup winding for example increases N3, N4 ... ... Nn, each winding pair A switch should be added.
Optionally, the control circuit that the application provides further includes:Outdoor machine of air-conditioner control system, wherein, outdoor machine of air-conditioner control System is connect with motor, for the environment temperature of driving power control outdoor machine of air-conditioner control system exported according to motor.
Embodiment two
Other side according to embodiments of the present invention, provides a kind of blower control method, and Fig. 3 is according to of the invention real A kind of flow diagram of blower control method of example two is applied, as shown in figure 3, this method comprises the following steps:
Step S302, whether detection input voltage meets default control condition, and exports corresponding control according to testing result Signal processed;
Step S304 carries out transformation according to control signal to input voltage;
Step S306, according to the input voltage driving motor after transformation.
Specifically, the blower control method that the application provides is applied to the corresponding control circuits of embodiment one Fig. 1 and Fig. 2, Wherein, detect whether input voltage meets default control condition, and foundation by the controller 12 in embodiment 1 in step S302 Testing result exports corresponding control signal;Further, pass through the folding of the switch of draught fan control circuit 14 in step S204 Pressure regulator 16 is controlled to carry out transformation to input voltage according to control signal;Finally, according to the input electricity after transformation in step S306 Press driving motor 18.
In embodiments of the present invention, by detecting whether input voltage meets default control condition, and according to testing result Export corresponding control signal;Transformation is carried out to input voltage according to control signal;According to the input voltage driving electricity after transformation Machine has achieved the purpose that extend each component service life of air-conditioning, it is achieved thereby that reducing the technique effect of air conditioning energy consumption, and then solve The technical issues of convertible frequency air-conditioner high energy consumption of having determined.
Optionally, it detects whether input voltage meets default control condition in step S302, and is exported according to testing result Corresponding control signal includes:
Step S3021 includes the first predeterminated voltage and the second predeterminated voltage, and the first predeterminated voltage in default control condition In the case of less than the second predeterminated voltage, when detecting that input voltage is greater than or equal to the first predeterminated voltage, and air conditioner load is big When default output power, output promotes the control signal of input voltage;
Step S3022, when detecting that input voltage is less than or equal to the second predeterminated voltage, and air conditioner load be less than it is default defeated When going out power, output reduces the control signal of input voltage.
Optionally, step S304 carries out transformation to input voltage according to control signal and includes:
Step S3041 in the case where control signal be to promote the signal of input voltage, disconnects first switch, closure the Two switches, boost to input voltage;
Step S3042 in the case where control signal be to reduce the signal of input voltage, is closed first switch, disconnection the Two switches, are depressured input voltage.
Further, optionally, include in step S306 according to the input voltage driving motor after transformation:
In the case where input voltage is the voltage after boosting, rotation speed of fan is promoted by driving motor by step S3061;
In the case where input voltage is the voltage after decompression, rotation speed of fan is reduced by driving motor by step S3062.
Optionally, it detects whether input voltage meets default control condition in step S302, and is exported according to testing result Corresponding control signal includes:
Step S3023 includes the first predeterminated voltage and the second predeterminated voltage, and the first predeterminated voltage in default control condition In the case of less than the second predeterminated voltage, when the section for detecting input voltage and being located at the first predeterminated voltage and the second predeterminated voltage When, control running state of air conditioner is constant.
Based on above-mentioned, Fig. 4 is the flow diagram of according to embodiments of the present invention two another blower control method, is such as schemed Shown in 4, the blower control method that the application provides is specific as follows:
Situation one:V≤V1
Step1, main control chip (that is, controller that the application provides) detection input voltage V≤V1 is (that is, the application provides The first predeterminated voltage) and air conditioner load (output power) it is larger when, draught fan control circuit switch 1 disconnect, switch 2 connect, become Depressor (that is, pressure regulator 16 that the application provides) primary side winding is switched to winding N1 so that output voltage is compared with input voltage height;
Step2, wind turbine (that is, motor 18 that the application provides) rotating speed are promoted, and cross-ventilation enhancing, controller dissipates hot and cold Condenser heat exchange gets a promotion, and air-conditioning can run higher frequency, provide the refrigerating capacity of bigger, promote the comfort level of user.;Due to Cross-ventilation enhances, and reduces outer machine controller environment temperature, extends the service life of smd controller.
Situation two:V≥V2
Step1 ' as input voltage V >=V2, judges whether that switching winding adjusts rotation speed of fan according to load;Work as inspection Measure air conditioner load it is smaller when, switch 1 can be opened disconnect switch 2 and be switched to winding N2, realizing reduces output voltage;
Step2 ' reduces rotation speed of fan, reduces Overall Power Consumption and outer machine noise.
Situation three:Voltage hysteresis V2-V1=△ V;When input voltage changes to V2 >=V >=V1, original state is maintained to transport Row under the conditions of significant change does not occur for air conditioner load, without switching, reduces the switching frequency, lifting switch service life.
The blower control method that the application provides can realize air-conditioning in subnormal voltage operation, by single-phase asynchronous motor (wind turbine) voltage is adjusted, and improves rotation speed of fan, enhances the heat dissipation effect of air-conditioning, reduces the running temperature of power device, protects Reliability of the air-conditioning in subnormal voltage operation is demonstrate,proved, can be depressured when air conditioner load is smaller by transformer, reduces wind turbine Rotating speed reduces wind turbine power consumption, reaches energy saving purpose.
Embodiment three
Another aspect according to embodiments of the present invention, provides a kind of fan controller, and Fig. 5 is according to of the invention real A kind of structure diagram of fan controller of example three is applied, as shown in figure 5, including:
Detection module 52, for detecting whether input voltage meets default control condition, and according to testing result output pair The control signal answered;
Voltage changing module 54, for carrying out transformation to input voltage according to control signal;
Control module 56, for according to the input voltage driving motor after transformation.
In embodiments of the present invention, by detecting whether input voltage meets default control condition, and according to testing result Export corresponding control signal;Transformation is carried out to input voltage according to control signal;According to the input voltage driving electricity after transformation Machine has achieved the purpose that extend each component service life of air-conditioning, it is achieved thereby that reducing the technique effect of air conditioning energy consumption, and then solve The technical issues of convertible frequency air-conditioner high energy consumption of having determined.
Example IV
Another aspect according to embodiments of the present invention provides a kind of air-conditioning, including:Control circuit, wherein, control electricity Road includes above-mentioned control circuit.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
In the above embodiment of the present invention, all emphasize particularly on different fields to the description of each embodiment, do not have in some embodiment The part of detailed description may refer to the associated description of other embodiment.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei A kind of division of logic function, can there is an other dividing mode in actual implementation, for example, multiple units or component can combine or Person is desirably integrated into another system or some features can be ignored or does not perform.Another point, shown or discussed is mutual Between coupling, direct-coupling or communication connection can be INDIRECT COUPLING or communication link by some interfaces, unit or module It connects, can be electrical or other forms.
The unit illustrated as separating component may or may not be physically separate, be shown as unit The component shown may or may not be physical unit, you can be located at a place or can also be distributed to multiple On unit.Some or all of unit therein can be selected according to the actual needs to realize the purpose of this embodiment scheme.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also That each unit is individually physically present, can also two or more units integrate in a unit.Above-mentioned integrated list The form that hardware had both may be used in member is realized, can also be realized in the form of SFU software functional unit.
If the integrated unit is realized in the form of SFU software functional unit and is independent product sale or uses When, it can be stored in a computer read/write memory medium.Based on such understanding, technical scheme of the present invention is substantially The part to contribute in other words to the prior art or all or part of the technical solution can be in the form of software products It embodies, which is stored in a storage medium, is used including some instructions so that a computer Equipment (can be personal computer, server or network equipment etc.) perform each embodiment the method for the present invention whole or Part steps.And aforementioned storage medium includes:USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic disc or CD etc. are various can to store program code Medium.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications also should It is considered as protection scope of the present invention.

Claims (11)

1. a kind of control circuit, which is characterized in that including:
Controller, draught fan control circuit, pressure regulator, motor, wherein,
For detecting whether input voltage meets default control condition, corresponding control is exported according to testing result for the controller Signal processed;
The draught fan control circuit is connect with the controller, and for receiving the control signal, the input after output is adjusted is electric Pressure;
The pressure regulator is connect with the draught fan control circuit, for carrying out pressure regulation according to the input voltage after adjusting, and Export the input voltage after pressure regulation;
The motor is connect with the pressure regulator, for according to the input voltage driving motor after pressure regulation.
2. control circuit according to claim 1, which is characterized in that the controller includes:Main control chip, wherein,
The main control chip, for including the first predeterminated voltage and the second predeterminated voltage in the default control condition, and it is described In the case that first predeterminated voltage is less than second predeterminated voltage, when detecting that the input voltage is greater than or equal to described the During one predeterminated voltage, output promotes the control signal of the input voltage;When detect the input voltage be less than or equal to institute When stating the second predeterminated voltage, output reduces the control signal of the input voltage.
3. control circuit according to claim 1 or 2, which is characterized in that the draught fan control circuit includes:Switching group and Corresponding winding, wherein,
The switching group, for carrying out folding according at least one switch of control signal control;
The winding is connected with corresponding at least one switch, for being adjusted according to the folding of at least one switch The resistance value of winding, so that the input voltage is adjusted.
4. control circuit according to claim 1, which is characterized in that the control circuit further includes:Outdoor machine of air-conditioner controls System, wherein, the outdoor machine of air-conditioner control system is connect with the motor, for the driving power control exported according to the motor Make the environment temperature of the outdoor machine of air-conditioner control system.
5. a kind of blower control method, which is characterized in that including:
Whether detection input voltage meets default control condition, and exports corresponding control signal according to testing result;
Transformation is carried out to input voltage according to the control signal;
According to the input voltage driving motor after transformation.
6. according to the method described in claim 5, it is characterized in that, whether the detection input voltage meets default control item Part, and include according to the corresponding control signal of testing result output:
Include the first predeterminated voltage and the second predeterminated voltage, and first predeterminated voltage is less than institute in the default control condition In the case of stating the second predeterminated voltage, when detecting that the input voltage is greater than or equal to first predeterminated voltage, and air-conditioning When load is more than default output power, output promotes the control signal of the input voltage;
When detecting that the input voltage is less than or equal to second predeterminated voltage, and the air conditioner load is less than default output During power, output reduces the control signal of the input voltage.
7. method according to claim 5 or 6, which is characterized in that it is described according to it is described control signal to input voltage into Row transformation includes:
In the case where the control signal is to promote the signal of the input voltage, first switch is disconnected, is closed second switch, It boosts to the input voltage;
In the case where the control signal is to reduce the signal of the input voltage, first switch is closed, disconnects described second Switch, is depressured the input voltage.
8. the method according to the description of claim 7 is characterized in that input voltage driving motor according to after transformation Including:
In the case where the input voltage is the voltage after boosting, by the way that the motor is driven to promote the rotation speed of fan;
In the case where the input voltage is the voltage after decompression, by the way that the motor is driven to reduce the rotation speed of fan.
9. according to the method described in claim 5, it is characterized in that, whether the detection input voltage meets default control item Part, and include according to the corresponding control signal of testing result output:
Include the first predeterminated voltage and the second predeterminated voltage, and first predeterminated voltage is less than institute in the default control condition In the case of stating the second predeterminated voltage, when detecting that the input voltage is located at first predeterminated voltage and described second default During the section of voltage, control running state of air conditioner is constant.
10. a kind of fan controller, which is characterized in that including:
Detection module for detecting whether input voltage meets default control condition, and exports corresponding control according to testing result Signal processed;
Voltage changing module, for carrying out transformation to input voltage according to the control signal;
Control module, for according to the input voltage driving motor after transformation.
11. a kind of air-conditioning, which is characterized in that including:Control circuit, wherein, the control circuit includes:In Claims 1-4 Any one of them control circuit.
CN201711160724.2A 2017-11-20 2017-11-20 Fan control method and device, control circuit and air conditioner Pending CN108168033A (en)

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CN108800486A (en) * 2018-07-02 2018-11-13 海信(山东)空调有限公司 The control method of air conditioner and the control method of air-cooled ducted air conditioner
CN109899945A (en) * 2019-03-14 2019-06-18 海信(广东)空调有限公司 Outdoor unit, variable frequency air conditioner and control method thereof
CN110107997A (en) * 2019-05-28 2019-08-09 芜湖美智空调设备有限公司 Control method, device and the air conditioner of air conditioner
CN110173801A (en) * 2019-05-10 2019-08-27 广东美的制冷设备有限公司 Air conditioner and its control method and device
CN112484244A (en) * 2020-11-18 2021-03-12 江苏科技大学 Control method and device for fan of air conditioner indoor unit

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Application publication date: 20180615